Seattle police detective told mistress he would ‘ruin her life’

A Seattle police detective accused of posting sexually explicit photos of a woman online has been released without bail and will voluntarily check himself into a treatment facility in Florida, his defense attorney said at a hearing Friday.

David N. Blackmer, 43, of Everett, was arrested at Seattle police headquarters Thursday morning and booked into the Snohomish County Jail for investigation of felony identity theft, domestic violence and cyberstalking.

According to court documents, Blackmer began an affair with a woman he met through an online dating service in December 2012. The affair ended when the woman found out Blackmer was married and confronted him at his home in front of his wife on July 17.

“During the argument, (the victim) stated Blackmer became angry that (she) was at his residence and Blackmer used his open hands and pushed (her) off the porch,” according to court documents. “Also during the altercation, (the victim) stated Blackmer grabbed her neck with one hand and pushed her to the ground on her buttocks.”

According to the woman, Blackmer threatened to “ruin her life” and “get back at her” for exposing their relationship.

After the confrontation, police said Blackmer activated a fake Facebook account under the woman’s name and used it to post sexually explicit photos he took of her during sex.

“Additionally, (the victim) observed photographs she had taken of herself wearing various outfits in front of a mirror in her residence and had previously texted and emailed to Blackmer at his request for ‘sexy’ pictures,” the documents said.

According to the victim, her “mother, brother, aunts, underage children of her aunts, friends, and people in her church” saw the photos and “expressed their shock” that she would engage in such activity.

“The woman told our investigators that these postings caused her embarrassment and fear,” Seattle police Sgt. Sean Whitcomb said at a press conference Thursday afternoon.

The Seattle Police Department has placed Blackmer, a 17-year veteran and member of the Criminal Investigations Unit, on paid administrative leave. His status would change to unpaid leave should he be charged with a felony.

Snohomish County District Court Judge Tam T. Bui Friday ordered Blackmer not to have contact with the victim and said he was not allowed to use any electronic device to access the Internet.

Blackmer’s defense attorney said he booked a flight for his client that will depart at 10:05 p.m. Friday for the Treasure Coast Recovery Center in Stuart, Fla. He did not say what Blackmer needed treatment for, but the center specializes in drug and alcohol rehabilitation.